package com.atguigu.netty.heartbeat;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.handler.timeout.IdleStateEvent;

public class MyServerHandler extends ChannelInboundHandlerAdapter {
    /**
     *
     * @param ctx 上下文
     * @param evt 时间
     * @throws Exception
     */
    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if(evt instanceof IdleStateEvent){
            //将evt向下转型
            IdleStateEvent event= (IdleStateEvent) evt;
            String eventType=null;
            switch (event.state()){
                case READER_IDLE:
                    eventType="读空闲";
                    break;
                case WRITER_IDLE:
                    eventType="写空闲";
                    break;
                case ALL_IDLE:
                    eventType="读写空闲";
                    break;
            }
            System.out.println(ctx.channel().remoteAddress()+"超时事件："+eventType);
            System.out.println("服务器做相应处理");
            //如果发生空闲，我们关闭通道
            ctx.close();
        }
    }
}
